Appendix A Epims; Epim-T - Cabletron Systems Expansion module 9E106-06 User Manual

EPIMs
The 9E106-06 Ethernet Switching Module provides one port per channel for
Cabletron Systems EPIMs. EPIMs allow connecting to the 9E106-06 using
different media types. Cabletron Systems offers a variety of EPIMs whose
specifications are explained in the following sections.
NOTE
Verify that the EPIM is the proper revision before installing it. See Installing the
EPIM on page 2-4 for details.

EPIM-T

The EPIM-T is an RJ-45 connector supporting UTP cabling. It has an internal
Cabletron Systems TPT-T™ 10BASE-T Twisted Pair Transceiver.
The slide switch on the EPIM-T determines the crossover status of the cable pairs.
If the switch is on the X side, the pairs are internally crossed over. If the switch is
on the = side, the pairs are not internally crossed over. Figure A-1 shows the
pinouts for the EPIM-T in both crossover positions.
The link distance is up to 100 meters on unshielded twisted pair cable as specified
by ANSI TP-PMD.
Position X
(crossed over)
1. RX+ 5. NC
2. RX- 6. TX-
3. TX+ 7. NC
4. NC 8. NC
Position =
(not crossed over)
1. TX+ 5. NC
2. TX- 6. RX-
3. RX+ 7. NC
8. NC
4. NC
Figure A-1. EPIM-T Pinouts
Appendix A
A-1